= John H. McDonald
{c}
<Evolutionary biologist> who, with <Martin Kreitman>, compared synonymous and <amino acid>-changing differences within and between <Drosophila> <species>. Their 1991 analysis supplied a statistical test of <neutral evolution>: under the proposed neutral baseline, the two kinds of difference should occur in the same ratio within and between <species>.<Adaptive protein evolution at the Adh locus in Drosophila by John H. McDonald and Martin Kreitman>[Abstract]{ref}
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